SOLUTION: If f(1) = -3 and f(x+2) = 3*f(x) - 3, find f(9).
Algebra.Com
Question 694648: If f(1) = -3 and f(x+2) = 3*f(x) - 3, find f(9).
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
f(1) = -3
f(x+2) = 3*f(x) - 3
f(1+2) = 3*f(1) - 3
f(1+2) = 3*(-3) - 3
f(3) = -9 - 3
f(3) = -12
-------------------------------------------------------
f(x+2) = 3*f(x) - 3
f(3+2) = 3*f(3) - 3
f(5) = 3*(-12) - 3
f(5) = -36 - 3
f(5) = -39
-------------------------------------------------------
f(x+2) = 3*f(x) - 3
f(5+2) = 3*f(5) - 3
f(7) = 3*(-39) - 3
f(7) = -117 - 3
f(7) = -120
-------------------------------------------------------
f(x+2) = 3*f(x) - 3
f(7+2) = 3*f(7) - 3
f(9) = 3*(-120) - 3
f(9) = -360 - 3
f(9) = -363
So the answer is f(9) = -363
RELATED QUESTIONS
If f(x+y)=f(x)+f(y) and f(1)=17, find f(2), f(3), and f(4). Is f(x+y)=f(x)+f(y) for all... (answered by ikleyn)
If f(x) = −5x + 1, find f(3), f(6), and f(−3).
f(3) =
f(6) =... (answered by jim_thompson5910)
2.f(x)=x-9 solve to f(-3),f(-1) and f(4)
(answered by ikleyn)
if f(x)=3-6x,find... (answered by ewatrrr)
If f(x + y) = f(x) + f(y) and f(1) = 3, Find f(2), f(3), and f(4). Is f(x + y) = f(x) + (answered by ikleyn)
for f(x)=-5x^2-4, find f(-3),and f(3)
F(-3)=... (answered by Alan3354)
If f(x)= 9x + 1, find f^-1 (f (3)... (answered by jim_thompson5910)
Find f(-3) and f(5/2) if
** (5/2) is a fraction
F(x) = |x|
F(x)= [x]... (answered by MathLover1)
f(x)=e^-x
find:
1.f'(x)
2.f"(x)
3.f"'(x)
4.f^4 (x)
5.f^n (x)
6.f'(0)
7.f"(0)... (answered by ewatrrr)